code: def _getTempFileName():
      """Creates unique test csv file name."""
      handle = tempfile.NamedTemporaryFile(
          prefix="test", suffix=".csv", dir="."
      )
      filename = handle.name
      handle.close()
  
      return filename
  
file_path: nupic-legacy/tests/integration/nupic/regions/single_step_sdr_classifier_test.py
imports: from operator import itemgetter
  import os
  import tempfile
  import unittest
  import numpy
  from datetime import datetime
  from nupic.data.file_record_stream import FileRecordStream
  from nupic.encoders import MultiEncoder, ScalarEncoder
  from nupic.engine import Network
  from nupic.frameworks.opf.model_factory import ModelFactory
label_desc: Use image node_id 1 for calling a global function with example usage: _getTempFileName() and returns: filename